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US 7,335,194 B2Granted
Sanitary tampon
AssigneeUni-Charm Corporation
InventorMitsuhiro Wada
Life of this patent
Estimating the term…
Abstract
There is disclosed a sanitary tampon including an absorber including: an absorbent layer made of an absorbent fibrous material; and a hydrophobic liquid-permeable layer covering the absorbent layer. The absorber is formed firstly into a flat shape and then into a column shape. The absorbent layer forming the flat absorber is formed with a plurality of small recesses which open in the surface of the absorbent layer and extend into the absorbent layer.
Claims9
A sanitary tampon comprising:
- an absorber including a flat absorbent layer made of an absorbent fibrous material and a hydrophobic liquid-permeable layer covering both surfaces of the absorbent layer, said flat absorbent layer having a plurality of small open recesses dispersed in both surfaces of said absorbent layer and extending toward an inner area of said absorbent layer, and said flat absorbent layer being folded along three fold lines extending in a longitudinal direction of said flat absorbent layer to have three clefts defined between adjacent folds and then compressed over a substantially entire length into a column shape, wherein the three clefts open on a column surface in a direction parallel to the longitudinal direction,
- wherein the small open recesses are formed by embossing said flat absorbent layer prior to folding and compression so that a fiber density of the absorbent layer is increased in a vicinity of the small open recesses.
Dependencies are inferred from the claim text.